Key Parameters for Customizing a Titanium Plate Heat Exchanger Evaporator

Customizing a titanium plate heat exchanger for evaporator duty requires complete process and refrigeration data. The required plate material, heat transfer area, channel arrangement, refrigerant circuit, connections, and design pressure depend on the operating conditions of both the refrigerant side and the heated or cooled fluid side.

1. Application and System Information

Please provide the basic project information first:

• Application: chiller, heat pump, process cooling, seawater cooling, or another system

• Equipment function: evaporator, condenser, heater, or cooler

• Installation location and operating environment

• Indoor or outdoor installation

• Available installation space

• Equipment orientation and mounting method

• Continuous or intermittent operation

• Required delivery schedule

Clearly identifying the application helps the engineering team determine the correct evaporator configuration and material combination.

2. Refrigerant-Side Parameters

For the refrigerant side, please provide:

• Refrigerant type

• Refrigerant mass flow rate

• Evaporation temperature

• Evaporation pressure

• Refrigerant inlet quality or superheat condition

• Required outlet superheat

• Refrigerant inlet and outlet temperatures

• Refrigerant-side pressure drop limit

• Refrigerant-side design pressure

• Refrigerant-side design temperature

• Oil return and oil compatibility requirements

• Refrigerant control method, such as expansion valve or flooded operation

These parameters are essential for determining the refrigerant channel arrangement and the required heat transfer surface.

3. Secondary-Fluid Parameters

Please provide the information for the fluid being cooled or evaporated-side secondary circuit:

• Fluid type: water, glycol solution, seawater, brine, process liquid, or another medium

• Fluid concentration, if glycol or brine is used

• Inlet temperature

• Outlet temperature

• Flow rate or required cooling capacity

• Fluid-side pressure drop limit

• Fluid-side design pressure

• Fluid-side design temperature

• Fluid cleanliness and suspended solids content

• Corrosion or scaling conditions

• Required freeze-protection conditions

The fluid composition is especially important when selecting titanium plates, gasket materials, and the appropriate flow arrangement.

4. Cooling Capacity and Thermal Performance

Please confirm the required thermal performance:

• Required cooling capacity in kW

• Heat load profile

• Design operating point

• Minimum and maximum operating capacity

• Required evaporation temperature range

• Required approach temperature

• Allowed outlet-temperature variation

• Required heat transfer area, if already specified

• Required thermal performance margin

• Seasonal or part-load operating conditions

If the cooling capacity is not available, provide the fluid flow rate and inlet/outlet temperatures so the engineering team can calculate the approximate heat load.

5. Titanium Plate and Material Requirements

Titanium is often selected for applications involving corrosive fluids or seawater. Please confirm:

• Titanium grade or material standard required

• Plate thickness requirement

• Plate surface finish

• Titanium material for all wetted components or plates only

• Connection material requirements

• Frame and clamping plate material

• Gasket material and compatibility requirements

• Brazed or gasketed construction

• Required corrosion allowance or material certificate

Material selection should be based on the actual fluid composition, temperature, pressure, and chemical environment. The final material combination should be approved by the project’s technical documentation.

6. Connection and Mechanical Requirements

Please provide the mechanical configuration:

• Refrigerant-side connection size and type

• Secondary-fluid connection size and type

• Connection orientation

• Connection location and center-to-center dimensions

• Flange standard, thread standard, or welding requirement

• Overall length, width, and height limits

• Equipment weight limit

• Mounting holes and support requirements

• Removable plate-pack requirement

• Service and cleaning access

• Drain and vent connection requirements

Accurate connection information helps avoid installation conflicts and reduces the need for site modifications.

7. Pressure, Temperature, and Safety Requirements

The following design conditions should be confirmed:

• Maximum working pressure on each circuit

• Hydrostatic test pressure

• Design temperature on each circuit

• Operating temperature range

• Pressure difference between circuits

• Vacuum or negative-pressure conditions

• Applicable pressure-equipment regulations

• Required inspection and certification

• Leak-test standard

• Safety-factor requirements

For refrigeration and process applications, both sides of the heat exchanger should be evaluated independently because their pressure and temperature conditions may differ.

8. Control and Operating Requirements

Please also specify the control requirements:

• Capacity-control method

• Refrigerant expansion-valve type

• Temperature sensors and pressure sensors

• Flow switch or flow-monitoring requirements

• Anti-freeze protection

• High-pressure and low-pressure protection

• Alarm and shutdown functions

• PLC or building management system integration

• Remote monitoring requirements

• Start-up and shut-down sequence

These requirements help ensure that the titanium plate evaporator operates reliably across the expected load range.

9. Recommended Information Package for a Quotation

For a preliminary selection or quotation, please send the following minimum information:

1. Application and system type

2. Refrigerant type and evaporation temperature

3. Refrigerant flow rate, if available

4. Secondary-fluid type and concentration

5. Secondary-fluid inlet and outlet temperatures

6. Fluid flow rate or required cooling capacity

7. Design pressure and temperature on both sides

8. Pressure-drop limits

9. Titanium grade and gasket requirements

10. Connection sizes, standards, and orientation

11. Overall size and installation restrictions

12. Drawings, layout plans, or equipment photos

CST can review this information and provide a customized titanium plate heat exchanger evaporator solution based on the customer’s process conditions and installation requirements.

About CST (VRCOOLERTECH)

CST (VRCOOLERTECH) provides heat exchanger, refrigeration equipment, and air cooling equipment design and manufacturing services. The company supports customers from requirement review and technical communication to product selection, drawing confirmation, manufacturing, inspection, and delivery, and provides customized OEM and ODM services worldwide.

Contact Information:

• Website: https://www.cstheatexchanger.com/

• Email: info@cstheatexchanger.com